<template>
  <div class="todo-header">
    <input v-model="name" @keyup.enter="addT" type="text" placeholder="请输入你的任务名称，按回车键确认"/>
  </div>
</template>

<script>
export default {
  name: "Header",
  data(){
    return{
      name:''
    }
  },
  methods:{
    addT(){
      //获得用户输入
      const {name}=this
      if (!name.trim()) return alert('输入的内容不能为空,请重新输入')
      //包装成一个todoObj
      // {id: "001", name: '爬山', done: true},
      const todoObj={id:Date.now(),name,done:false}
      //通知app添加一个todoObj
    /*  this.addTodo(todoObj)*/
      this.$emit('addTodo',todoObj)
//清空输入框
      this.name=""
    }
  }
}
</script>

<style scoped>
/*header*/
.todo-header input {
  width: 560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
}
</style>